1.\" $NetBSD: which.1,v 1.2 2010/04/05 16:13:58 joerg Exp $ 2.\" 3.\" Copyright (c) 1980, 1991 Regents of the University of California. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" from: @(#)which.1 6.3 (Berkeley) 4/23/91 31.\" $NetBSD: which.1,v 1.2 2010/04/05 16:13:58 joerg Exp $ 32.\" 33.Dd April 23, 1991 34.Dt WHICH 1 35.Os 36.Sh NAME 37.Nm which 38.Nd "locate a program file in the users $PATH environment variable" 39.Sh SYNOPSIS 40.Nm 41.Op Fl a 42.Ar name 43.Op Ar ... 44.Sh DESCRIPTION 45.Nm 46takes a list of names and looks for the files which would be 47executed had these names been given as commands. 48Each argument is searched for along the user's 49.Ev PATH . 50.Pp 51If the 52.Fl a 53flag is given, 54.Nm 55will continue to search the 56.Ev PATH 57until all instances of a program file are found. 58.Sh HISTORY 59The 60.Nm 61command appeared in 62.Bx 3.0 . 63.Sh BUGS 64This implementation does not expand 65.Xr csh 1 66aliases, and is shell agnostic. 67This is really a feature. 68